Pump drain



PUMP DRAIN Filed May 23. 1927 Fatented Apr. 3, 1928.

UNITED STATES gPATENT oFFlcE.

MARKWALTON, on ULLIN, ILLINOIS, AssIeNon 0F ONE-HALF To JOHN scANLIN, or

' ULLIN, ILLINOIS.

PUMP DRAIN.

Application inea may 2a,

The present invention is directed to improvements in drains for pumps.'

The primary object of the invention is to provide a pump provided with means to prevent freezing of the water therein, the construction being such that water likely to freeze will be drained from the pump back into the well.

Another object of the invention is tov provide means so arranged that all water from the pump will be conducted directly into the driven pump pipe and from thence into: the well, thereby maintaining the ground adjacent the pump in a thoroughly dry state.

In the accompanying drawing:

Figure l is a side elevation of the pump, partly in section.

Figure 2 is a sectional View of the barrel and tube, the latter being shown in elevation.

Referring to the` drawing, l designates a pump from which depends an inlet pipe 2 which communicates with the pump cylin# der 3.

Interposed between the driven pipe 4 and nipple 5 of the cylinder 3 is a barrel 6 having its ends threaded to the nipple and pipe 4, respectively. The barrel 6 is in the nature of an attachment and has an opening 7 drilled in its side wall near the upper end thereof and in which is welded or otherwise suitably secured intermediate its ends a tube 8, preferably lof copper, in order that it can be conveniently bent to the desired shape. The upper end of this tube is fitted in an opening 9 formed in the outlet pipe2 at a point just above the cylinder 3. When the barrel is in place that portion of the tube below the opening l() formed in the barrel extends downwardly within the pipe 4 with its lower end below the water line of the well.

In Figure 2 of thedrawing, the barrel V6 and tube 8 are shown as a-separate unit from the pump, and for the convenience of handling the tube has its lower end'coiled, as at 11. When the barrel is to be assembled with the pump, the coil is straightened out and is 1927. Serial No. 193,681.

inserted in the pipe 4 and the barrel screwed Y thereon.

The portion of the tube ywhich extends from the opening 10 is bent around the cylinder 3, as shown in Figure 1, and the upper end thereof ts in the opening 9.

It will bey apparent that all water will l drain from the pipe 2 through the tube 8 and back into the well, while the water will remain in the pipe 4 and cylinder 3, as a priming medium.

The cylinder is embedded in the ground a sufficient vdistance from the surface to prevent water therein freezing, and since the water in the pipe 2 will drain therefrom, all danger of the water freezing is eliminated.

While the barrel can be more conveniently applied to a pump when first being installed, the construction is such that, with very little trouble, it can be applied to a pump already in use.

Having thus described the invention, I claim:

l. The combination with a pump cylinder, of an outlet pipe leading therefrom, an. inlet pipe, a barrel between the cylinder and inlet pipe, a tube fixed inthe wall of the i barrel and having its respective ends extended into the inlet and outlet pipes.

2. The combination with a pump cylinder, of an outlet pipe leading therefrom, an inlet pipe, a barrel between the cylinder and inlet pipe, a drain tube passing through the Wa'llof the barrel and having a portion vdisposed exteriorly of the cylinder and in communication with the outlet pipe, and a portion disposed within the barrel and extending into the inlet pipe.

3. As a new article of manufacture, a

drain unit for pumps comprising a barrel, a

' drain tube passing through and fixed intermediate its ends with the wall of the barrel to maintain a portion of the tube within the barrel and a portion thereof extended' therefrom.

In testimony whereof I alix my signature.

MARK WALTON. [n s] 

